Why Powder Coating Defects Often Start in Pretreatment — Not Spraying
The Hidden Root Cause of Powder Coating Defects In many powder coating operations, unstable quality is often attributed to spraying parameters—gun settings, powder flow, or operator technique. While these factors do matter, they are rarely the primary cause of recurring defects. n reality, pretreatment is the foundation of coating performance. If the substrate is not […]
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